Cultivator shovel back



April 1935- c. E. BERGGREN CULTIVATCR SHOVEL BACK Filed May 8, 1934 I LIE. Beryjren Patented Aral-.2, r

I I i I UNITED i I CULTIVATOR shov ng BACK i f CharlsE. Bagged; wilcoi r, Nehr. Application Ma 8, 1 934:, Serial No. 724,562 I i i ecl ims. (clear-19s) v This invention relates to a cultivator shovel and consists of a pair of oppositely inclined sides back and has for its object to provide, in a inane l5; I6 and aconcave bottom I1. 7 The side [5 is her as hereinafter set forth, a structure capable ofgreater height than side l6 and is formed with of being employed for securing with the shovela a T-shaped slot. The head andstem of the latter I 5 shank having its cross sectionalcontour square, are indicated at l8 l9' respectivelyfi'I Thej stem' 5 polygonal, circular or oval. I8 is disposed attheverticaI center 'a'ndftliehead A further object of the invention is to provide l9; between the longitudinal center andfthetop a cultivator shovel back capable of being uniedge ofside l5. The bottom I! 'is'iormed atits V versally employed in connectionwith the various transverse centerwith a slot 20 forming a conforms of cultivator shovel shanks now 'in' general tinuation of the'stem l9 and which is of a length 10 use. t j vtoj'jextend into the lower portion "ofside |,5 'EX' Further objectsof the invention are to provide, tending downwardly at an inclination irom'the in a manner as hereinaftersetforth,a cultivator outer face of side it (below the top edge of the shovel back whichis simple in its vconstruction latterisa' pair'of'spaced parallel lugs 21*which 4 and arrangement, strong, durable, compact; ca: provide element I 2 with whatmay'betermed a 15 be" I 40 element ,of the back,

45 Figure 7 is asection on line 1'I, Figure 6. v

' pable of being used in "connection" with shovel slotted' portionon "sidejlli, The side lGfcenshanks of various forms, thoroughly efiicient for trally thereof is. formed witha transverse groove v thepurpose intended therebyyconveniehtly ap- 22 openingfat ltSiIOI) edge; The 'side' walls 23 plied when couplingor anchoringa shank with or groove 22 are oppositely inclined." The hot a shovel; and inexpensive to manufacture. j tom walrof groove 22 forms a continuation of the 20 To the above ends essentially, and to others upper face's'of lugs 2 l.- Forrned integral with the whichmay hereinafter appear, theinvention conlower 'face of the bottornfll atfthe ends of the sists'of such'parts, and sucheombinationof parts latter are oppositely directed dowl iwardly in -v which fall within the scopeof vthe invention as clined ea'rs 24 forihedwith"theopnings25: j"

25 claimed. 7 j i "The ears 2 4' are of angle-shaped fcontour and 25 v In the drawing: 7 each is formed with av'erticalanda' horizontal Figure l is alongitudinal sectional view of a; 1eg.- The latter'is of less length thanand'extendscultivator shovel having installed -therewith a rearwardly from the innerend' of "the verticalleg" back in accordance with this invention'and furwith respect to the rear face of shovel 8E The 3O ther illustrating a shank of c' ,c'ular section horizontal leg merges into one'end'of the inner 80,

I fac'e'of thebottomilL- r r p V I Figure 2 is a rear elevation of the-back carried The holding element 12 isadapted to beposi-g by a cultivator-shovel and furtherillustrating a tioned rearwardly of and have the vertical legs shank of circular cross section secured in posiof'the ears'24 abutagainstthe rear facevof the 5 tion with respect to theshovel; V shovel 8, and with the apertures ZB'registering i re 3 is asectionon li e g e 2, with -the=openings 9. Holdfast means'26 extend F1su e4'is, a pe ec v vi wp h o r' through said registering openings for" anchoring a o e basis y 11 element lZto shovel a, and when so .ttnchoted the Figure 5 1s a perspectlve l w h a lng bottom n will be spaced throughout from the'rear i i ,1 face of the'shovel. This arrangement is haddue Q Flgure- 6 18 n m? 9 cultlvator S to the 'forwardly extending or thefears 24"with showing the adaptation therewith of-thebacls'in' respect-f0 o m V 1' eccordance with this V P FW r The clamping element l3 consists of a narrow Hon a shank of square crosssectmn body'part, of substantially oblong 'contourjinlplan" a formed with'a pair of end stretches 27, 28 and'an In h ylmwmg a fi m Y 1 deiilgnalfed intermediate'stretch' zsiof'greatet length than 8 and it is formed at its lengthwise median with either end Stretch I The Stretch f t a pair of spaced aligning openings 9. A cultif 1S 0 concave orm and has its outer portion extended above vator shank of circular cross section is designated 5O '9 and one of Square cross section at l L V v its inner portion-to provide a bill 31 The stretch [The shovel back Shank coupling Structure. 28 is ofcircular form provided on its inner face in accordance with this invention comprising a with a pair of spacedlugs disposed diametriv holding element I2, a clamping element [3 and Cally theleofy The Stretch 28 is a o formed with a securing unit l4. 7 an axially arranged opening 30. The stretch 29 The element I2 is formed of a'single casting is of substantially'inverted V-forrn and providedss onits outer'face with a re-inforcingrib. The

stretch 21 constitutes a hook. V

The securing unit l4 consists of a headed bol 32 and a retainer nut 33 adjustably mounted on it's shank. v The head of the-bolt is designated 34.' The bolt 32 hasits shank formed with a squared portion 35 adjacent head'34.

When securing the shank H] to the shovel 8 it is positioned against the upper face of bottom H betweenthesides l'Ii, l6.f The bolt 32 islextended V upwardly between the lugs 2|. Thehead 34 of the bolt abuts the lower face of the lugs 2| and is of afdiameter greater than the space between 'saidlugs 24. The element I3 is thenpositioned upon shank 10, with the hook formed by end stretch 21 extended through the head 19 of the T-shaped slot and .with endstretch 28 mounted on the shank of bolt 32. This arrangement couples the, shank l with element l2; Now to fixed secu s a k"). t emen '2, the nut 33.

, isgpositioned on theshank of bolt 32 to, abut end stretch'ZB of'element :13. Thenut 33 isthen adjusted'to: Se 111973. binding engagement between elej Tents 1 2; :13 a'rdshank I0 whereby'the'latter;

is tightlyjsecured'withelement 12-. t v

jThe 'shafnkglsl includes two spaced sections 36 amaatpemng 31 for the passage of 'bo1t32, When securing shank I I to-shovel 8 'iti s"positioned; against the upper face ofrbottom. "ll between the sides 15,16. fThe opening 37 in shank H registers with slot '20; 'Bolt 32 is extended up throughjslot '2 0, opening 31 and shank sections 35. The head '35 or. bolt. 32 abuts: the lowerfacej of 7 pattern 11 lane: is of ifgr'eiatr" diameter thanjthe width of slot 210:. ;,;;'r1ie element I3 is then po'si-. tioned on-the .oiiter edge'slof the sections 36 of" the shank flliliand with the stretch 2815f element [3 having the shanklofbolt 3 2fextending therehrp s'hi. arid i the b ve r an m slillte emem 12.1 h m i n ish med-. 991? tai i tt nds rr t h hw t u zisthenzadi ii io gn d f-a q a ebott m pa t-a a n o ess on s e ra ts; one-Pi h si s b n f essr is t' hani he, o he a d-1 awavce trally .thereof a pair of laterally extending aperiilfie fi le and it r e y to h ends part toispace thef1atterfrom the .pa f inwardly inclined spaced shovel an I parallel liig s inte'rar atthe point of mergence tr said bottdihiiart with the side part'of'less'height;

said, element being "formedtransversely-thereof.

' Wit/[ha -T-shapeds1ot, the stern of'the latter being" r en'giedim said .bbttbmiiiai'tt and theTsideI part Ofgrtestheight, "the head 'Of' said 'slot bein'g positioned in said 'side part'fof greatest height,

'1. A cultivator shsal akj a assesses ha io h shqve t omp nsa old n eme t holdfast'means for extension through said ears for anchoring the latter against the shovel, a securing unit for abutting spaced portions of and for extension outwardly through said holding element, and a clamping element for seating upon the shank and having an opening at one end for the passage of the securing unit, the latter including an adjustable part for bearing against said apertured end.

' 2, A cultivator shovel back for anchoring a shank to the shovelcomprising aholding -element formed of a concave bottom and a pair of sides ofdifferent height, said element having a pair of oppositelyidisppsed apertured ears of angle-shape contour extending forwardly from the ends of said '"bottomadapte'd to abut and be anchored to said :iear face jonmaintaining the shovel in spaced relation with respect to said bottom, said element being formed with a T-shaped slot having its stem portionfextending from/the side of smallest height, transversely through .said bottom and into'said otherside; the. head portion "of ,said opening being arranged within, the s'aiidgother side lengthwise of thelatterg'said side of smallest height cutout in its toped'ge andiformed with a slotted portion spaced from, and aligning .with the closed end; of "saidsstem portion, ajshank clamping element havinga. hooked-shaped par an" nvertea wshapedpart for seating on the shank and an apertured part, an'd'a securing unit having a squared part for selectively positioning inls'aidfslotted'portion and said stem portion, said securing junit including a part for-extension through said apertured part :an'dean] adjustable part ,for binding upon said aperturedlpart.

3.;"A cultivator shovel back (for anchoring a shank to the shovel comprising aiholding element forme'dlfof 5a concave-lb'ott'omand apair of sides of different heightfsaid element having .a pair of, oppositely disposed vapertured .ears of angleshaped contourextending forwardly from the ends" of, said bottom adapted to abutand be anchored to. said reargfacel for maintaining the shovel in "spaced relation with respect to said bottom, said element being formed with a T- shapedi -slot having its stern portion extending from; the side ;of smallest height, transversely through-said bottom-andrinto said other side, the head portionofisaid opening being arranged with-, in the said other side lengthwise of thelatter, a shank clamping element havingconcaveandinverted V-shaped .partsfor seating on the shank and an apertured part extended laterally from said V-shaped part, and-a securingunitincluding a part f e i tfi the'lp r ace of s b m. a squared part ,for extensionthrough said stem portion, a threaded part for' extension through the shank and said .apertured {part and an adjustable'part engaging withjsaid threadedjpart a d r i g. upon aidnswe ed r ma said aperturedpart-having its inner face formed with spaced lugs diametrically thereof for extensioninto the shank. t s v CHARLS-E. BERGGREN. 

